20412984

素因数分解:

$2^3\times 3^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{211}}^1$

素因数の和:388

約数の個数: 64

約数和(自身を含む): 53424000

約数和(自身を除く): 33011016

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 29, 58, 87, 116, 139, 174, 211, 232, 278, 348, 417, 422, 556, 633, 696, 834, 844, 1112, 1266, 1668, 1688, 2532, 3336, 4031, 5064, 6119, 8062, 12093, 12238, 16124, 18357, 24186, 24476, 29329, 32248, 36714, 48372, 48952, 58658, 73428, 87987, 96744, 117316, 146856, 175974, 234632, 351948, 703896, 850541, 1701082, 2551623, 3402164, 5103246, 6804328, 10206492, 20412984]

約数ペア:

[(1, 20412984), (2, 10206492), (3, 6804328), (4, 5103246), (6, 3402164), (8, 2551623), (12, 1701082), (24, 850541), (29, 703896), (58, 351948), (87, 234632), (116, 175974), (139, 146856), (174, 117316), (211, 96744), (232, 87987), (278, 73428), (348, 58658), (417, 48952), (422, 48372), (556, 36714), (633, 32248), (696, 29329), (834, 24476), (844, 24186), (1112, 18357), (1266, 16124), (1668, 12238), (1688, 12093), (2532, 8062), (3336, 6119), (4031, 5064)]